๋ฌธ์
https://www.acmicpc.net/problem/9465
ํ์ด
t = int(input())
for i in range(t):
s = []
n = int(input())
for k in range(2):
s.append(list(map(int, input().split())))
for j in range(1, n):
if j == 1:
s[0][j] += s[1][j - 1]
s[1][j] += s[0][j - 1]
else:
s[0][j] += max(s[1][j - 1], s[1][j - 2])
s[1][j] += max(s[0][j - 1], s[0][j - 2])
print(max(s[0][n - 1], s[1][n - 1]))
'๐๏ธ Algorithm > ๐ฉ ๋ฐฑ์ค' ์นดํ ๊ณ ๋ฆฌ์ ๋ค๋ฅธ ๊ธ
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